System Requirements*Requires The Sims™ 3 to play PC OS: Windows XP SP2, Windows Vista SP1 or Windows 7 CPU: (XP) 2.0 GHz P4 processor or equivalent; (Vista and Windows 7) 2.4 GHz P4 processor or equivalent RAM:(XP) 1 GB RAM; (Vista and Windows 7) 1.5 GB RAM HARD DRIVE: At least 300 MB of free space with at least 1 GB additional space for custom content and saved games.* VIDEO: DirectX 9.0c compatible Video Card with 128 MB of Video RAM and support for Pixel Shader 2.0 *6.4 GB if installing with The Sims 3 Supported Video Cards: Nvidia GeForce series: FX5900 or better; ATI Radeon™ 9500 series or better; Intel® Graphics Media Accelerator (GMA): GMA 3-Series, GMA 4-Series. Laptop versions of these chipsets may work, but may run comparatively slower. Please note that the GMA 950 class of integrated video cards, and GeForce 6100 and 7100 cards are not supported. (NVIDIA GeForce FX series is unsupported under Vista.) For computers using built-in graphics chipsets the game requires at least: Intel Integrated Chipset, GMA 3-Series or above, 2.6 GHz Pentium D CPU, or 1.8 GHz Core 2 Duo, or equivalent and 0.5 GB additional RAM. MAC OS X:Mac OS X 10.5.7 Leopard or higherIntel Core Duo Processor2 GB RAMATI X1600 or Nvidia 7300 GT with 128 MB of Video RAM, or Intel Integrated GMA X3100.At least 6.1 GB of hard drive space with at least 1 GB of additional space for custom content and saved gamesThis game will not run on PowerPC (G3/G4/G5) based Mac systems, or the GMA 950 class of integrated video cards